Question

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what observations can be made when zinc granules are added to dilute sulphuric acid?? ​

Answer 1

Observations-

1) When dilute sulphuric acid is poured on zinc granules, then zinc sulphate is formed along with the evolution of a gas. Zinc is more reactive than hydrogen, so displaced it from sulphuric acid.

2) The gas evolved is hydrogen.....!

Answer 2

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• The surface of zinc metal becomes dull and black when seen after the reaction.
• A colourless gas evolves which burns with a pop sound.
• The Solution remains colourless.
• The mixture during reaction becomes hot suggesting this reaction to be an exothermic reaction.